Synthesis, cytotoxicity and antibacterial studies of symmetrically and non-symmetrically benzyl- or p-cyanobenzyl-substituted N-Heterocyclic carbene-silver complexes
作者:Siddappa Patil、Anthony Deally、Brendan Gleeson、Helge Müller-Bunz、Francesca Paradisi、Matthias Tacke
DOI:10.1002/aoc.1702
日期:2010.11
(1a), 4,5‐dichloro‐1H‐imidazole (1b) and 1H‐benzimidazole (1c) with p‐cyanobenzyl bromide (2), symmetrically substituted N‐heterocyclic carbene (NHC) [(3a–c)] precursors, 1‐methylimidazole (5a), 4,5‐dichloro‐1‐methylimidazole (5b) and 1‐methylbenzimidazole (5c) with benzyl bromide (6), non‐symmetrically substituted N‐heterocyclic carbene (NHC) [(7a–c)] precursors were synthesized. These NHCprecursors
由1H-咪唑(1a),4,5-二氯-1H-咪唑(1b)和1H-苯并咪唑(1c)与对氰基苄基溴(2)对称取代的N杂环卡宾(NHC)反应[ 3a–c)]前体,1-甲基咪唑(5a),4,5-二氯-1-甲基咪唑(5b)和1-甲基苯并咪唑(5c)与苄基溴(6),不对称取代的N杂环卡宾(NHC) )[(7a–c)]前体已合成。这些NHC然后将前体与乙酸银(I)反应生成NHC-银络合物[1,3-双(4-氰基苄基)咪唑-2-亚基]乙酸银(I)(4a),[4,5-二氯- 1,3-双(4-氰基苄基)咪唑-2-亚基]乙酸银(I)(4b),[1,3-双(4-氰基苄基)苯并咪唑-2-亚基]乙酸银(I)(4c) ,(1-甲基-3-苄基咪唑-2-亚烷基)乙酸银(I)(8a),(4,5-二氯-1-甲基-3-苄基咪唑-2-亚烷基)乙酸银(I)(8b)和(1-甲基-3-苄基苯并咪唑-2-亚甲基)乙酸银(I)(8c)。四个N